Madhusudan Iyengar and Roger Schmidt IBM, Poughkeepsie, New York Many of our day-to-day activities, including Internet searches, handheld electronics usage, automated cash withdrawal, and online hotel and airline reservations, require the use of remote databases…read more
Liquid Cooling is Back
August 1st, 2005
Introduction IBM announced its return to water cooling on April 19, 2005 with the introduction of a water cooled heat exchanger mounted to the back cover of a 19 inch rack. This is the first…read more
ASHRAE Committee Formed to Establish Thermal Guidelines for Datacom Facilities
February 1st, 2005
Introduction The environment of every data center is complex and unique. Air currents within the data center have hot and cold air streams colliding, cold air exhausting upward from perforated tiles, hot air streams exhausting…read more
Hot Spots in Data Centers
August 1st, 2003
Heat loads of data processing equipment continue to increase at a rapid rate. This increasing heat load has been documented by a Thermal Management Consortium of 17 companies [1] as shown in Figure 1. Also…read more
Use of Naphthalene Sublimation Technique for Obtaining Accurate Heat Transfer Coefficients in Electronic Cooling Applications
August 1st, 2001
The naphthalene sublimation technique has been demonstrated by a number of investigators to be an excellent method for obtaining heat transfer results [1,2] and a few have applied this technique to applications focused on electronic…read more
Low temperature electronic cooling
September 1st, 2000
The potential for low temperature enhancement of CMOS performance has been recognized for some time, going back as far as the late 1960′s and mid-1970′s. A collection of articles focusing on low temperature electronics is…read more
A simple method to estimate heat sink air flow bypass
May 1st, 1997
Introduction After selecting or designing a heat sink based upon a given air velocity orvolumetric flow rate through the fins, the thermal designer needs to determinethe total amount of flow which must be delivered in…read more
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